| Absolute
Value |
The
distance of a number from zero on a number line. Since distance
is always thought of as positive, the absolute value of any
number is always positive. |
| Acute
Angle |
All
angles whose measures are between 0 and 90 degrees. |
| Angle
|
A
figure formed by two rays that share the same endpoint. |
| Angle
of Depression |
The
angle formed between a horizontal line and an oblique line joined
to some object below the horizontal. |
| Angle
of Elevation |
The
angle formed between a horizontal line and an oblique line joined
to some object above the horizontal. |
| Area |
The
number of square units required to cover a shape or figure. |
| Axis
of Symmetry |
A
line, on which a figure can be folded, so that one side of the
figure will become superimposed over the other side of the figure. |
